The derma, scale follicle, fin, gill, kidney, liver, spleen and intestine of diseased fish revealed to a greater or lesser degree pathological changes, especially in the kidney, derma and gill.

• 病鱼的皮肤、鳞囊、鳍、鳃、肾、肝、脾和肠都显出不同程度的病理变化，尤其是肾、鳃和皮肤更严重。